1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 5596:1999 ICS 23.1
2、00.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Hydraulic fluid power Gas-loaded accumulators with separator Ranges of pressures and volumes and characteristic quantitiesThis British Standard, having been prepared under the direction of the Engineering Sector Committee,
3、was published under the authority of the Standards Committee and comes into effect on 15 February 2000 BSI 02-2000 ISBN 0 580 35819 4 BS ISO 5596:1999 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard reproduces verbatim ISO 5596:1999 and implements i
4、t as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MCE/18, Fluid power systems and components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on
5、the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Stan
6、dards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not
7、purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside fro
8、nt cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.Referencenumber ISO5596:1999(E) INTERNATIONAL STANDARD ISO 5596 Secondedition 1999-12-01 Hydraulicfluidpo
9、werGas-loaded accumulatorswithseparatorRangesof pressuresandvolumesandcharacteristic quantities Transmissions hydrauliques Accumulateurs hydropneumatiques avec sparateur Gammes de pressions et de volumes et grandeurs caractristiquesISO5596:1999(E) ii ISO5596:1999(E)iii Foreword ISO(theInternationalO
10、rganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatc
11、ommittee.Internationalorganizations,governmentalandnon-governmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/I
12、ECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. AttentionisdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybet
13、hesubjectof patentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardISO5596wasdevelopedbyTechnicalCommitteeISO/TC131, Fluid power systems. Thissecondeditioncancelsandreplacesthefirstedition(ISO5596:1982),whichhasbeentechnicallyrevised.ISO5596:1999(E) iv
14、Introduction Inhydraulicfluidpowersystems,poweristransmittedandcontrolledthroughaliquidunderpressurewithinan enclosedcircuit. Gas-loadedaccumulatorsarecomponentsthatareabletostoreandreturnenergyinaccordancewiththeprinciple ofcompressibilityofgases.INTERNATIONALSTANDARD ISO5596:1999(E)1 Hydraulicflui
15、dpowerGas-loadedaccumulatorswith separatorRangesofpressuresandvolumesandcharacteristic quantities 1 Scope ThisInternationalStandardspecifiesthecharacteristicperformancequantitiesrequiredfordefining,designing,and testinggas-loadedaccumulatorswithseparator,whichareusedinhydraulicfluidpowersystems. Ita
16、lsodefinesrangesofpressuresandvolumesfortheseaccumulators. 2 Normativereferences Thefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsof thisInternationalStandard. Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthese publicationsdonotapply
17、.However,partiestoagreementsbasedonthisInternationalStandardareencouragedto investigatethepossibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.For undatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIEC maintainregistersofcurrentlyvalid
18、InternationalStandards. ISO3, Preferred numbers Series of preferred numbers. ISO5598, Fluid power systems and components Vocabulary. 3 Termsanddefinitions ForthepurposesofthisInternationalStandard,thetermsanddefinitionsgiveninISO5598andthefollowingapply. 3.1 gas-loadedaccumulator accumulatorwithsepa
19、rationinwhichtheliquidispressurizedusingthecompressibilityofaninertgas(nitrogen,for example). NOTE Theseparationisachievedbymeansofabladder,diaphragm,piston,etc. 3.2 gas-loadedaccumulator,transfertype gas-loadedaccumulatorwithaportforadditionalgascapacityfromoneormoregasbottle(s) 3.3 compatiblefluid
20、 fluidthathasnosignificanteffectonthenatureorlifeofthepartsoftheaccumulator,especiallythosemadeof elastomericmaterialsISO5596:1999(E) 2 4 Applications 4.1 Energystorage Thegas-loadedaccumulatorstoreshydraulicfluidunderpressureduringaperiodoflowenergydemandfromthe circuitinwhichitismounted.Thestoredh
21、ydraulicfluidisthenreturnedtothecircuittosupplementorreplacethe pumpdischargetemporarilyortoensureemergencyoperation. 4.2 Pulseorsurgedamping Thegas-loadedaccumulatorabsorbshydraulicfluidtoreducepressurepeaksandreturnshydraulicfluidto compensateforpressuredrops.Theaccumulatorthusreducestheamplitudeo
22、fpressureoscillationsinthecircuit inwhichitismounted. 4.3 Thermalcompensation Thegas-loadedaccumulatorabsorbsvolumechangesresultingfromchangesinthetemperatureofthehydraulic fluidcontainedinanisolatedpartofthecircuit. 5 Characteristicquantities Thefollowingquantitiesshallbeusedtodefineanddesignagas-l
23、oadedaccumulator. 5.1 Pressures p 0 =pre-chargingpressure,i.e.,thegaspressureintheaccumulatorwhenthehydrauliccircuitisnotunder pressure(initialstate)atatemperatureof20C 5C. p 1 =minimumworkingpressureofthehydrauliccircuit. p 2 =maximumworkingpressureofthehydrauliccircuit. p 3 =setpressureofthepressu
24、rereliefvalvefortheaccumulator,ifoneisfitted. p 4 =allowablepressure,i.e.,themaximumpermissiblepressureforwhichtheaccumulatorhasbeen designedand/orqualifiedbytest. p 5 orp t =hydraulictestpressure;theratiobetween p 5 and p 4 isdefinedbyrelevantnationalregulationsor designcodes. 0 2 p p = allowablepr
25、essureratiobelowwhichtheaccumulatortypecanbeused. Pressuresshallbeexpressedinmegapascals,withtheequivalentvalueinbarsinparentheses. 5.2 Volumes V =internalvolumeofthegaschamber. V 0 =gasvolumeatpressurep 0 . V 1 ,V 2 =volumesoccupiedbythegascontainedintheaccumulatorandanyadditionalgasbottlesatpressu
26、res p 1 andp 2 ,respectively(asdefinedin5.1). V S =sweptvolumeofpiston-typeaccumulator. V =volumethatcanbestoredordischargedbetweenthetwopressuresp 1 andp 2 . Volumesshallbeexpressedinlitres.ISO5596:1999(E)3 5.3 Flowrates q in =maximumvolumetricflowrateintotheaccumulator. q out =maximumvolumetricflo
27、wrateoutoftheaccumulator. Flowratesshallbeexpressedinlitresperminute. 5.4 Temperatures t 1 =minimumoperatingtemperatureofthehydraulicfluidoroftheenvironment,whicheverislower. t 2 =maximumoperatingtemperatureofthehydraulicfluidoroftheenvironment,whicheverishigher. t c,min =minimumdesigntemperature;t
28、c,min shallbelowerthanorequaltot 1. t c,max =maximumdesigntemperature;t c,max shallbehigherthanorequaltot 2 TemperaturesshallbeexpressedindegreesCelsius. 6 Rangesofpressuresandvolumes 6.1 Nominalpressurerange,p 4 6,3(63)10(100)16(160)20(200)25(250)31,5(315)40(400)50(500)63(630) Pressuresareexpressed
29、inmegapascals,withtheequivalentvalueinbarsinparentheses. Forspecialapplicationsthatrequirelowerorhigherpressures,usepressurescorrespondingtotheR10seriesof preferrednumbers(seeISO3). 6.2 Nominalvolumerange,V 0,250,40,50,631,01,62,54,06,31016202532405063100160200 Volumesareexpressedinlitres. Forspecia
30、lapplicationsthatrequiresmallerorlargervolumes,usevolumescorrespondingtotheR10seriesof preferrednumbers(seeISO3). 7 Identificationstatement(referencetothisInternationalStandard) Usethefollowingstatementintestreports,catalogues,andsalesliteraturewhenelectingtocomplywiththis InternationalStandard: “Ra
31、ngesofpressuresandvolumes,andcharacteristicquantitiesforgas-loadedaccumulatorswithseparator selectedinaccordancewithISO5596:1999, Hydraulic fluid power Gas-loaded accumulators with separator Ranges of pressures and volumes and characteristic quantities.”ISO5596:1999(E) 4 Bibliography 1 ISO2944: 1) ,
32、 Fluid power systems and components Nominal pressures. 2 ISO10945:1994, Hydraulic fluid power Gas-loaded accumulators Dimensions of gas ports. 3 ISO10946:1999, Hydraulic fluid power Gas-loaded accumulators with separator Selection of preferred hydraulic ports. 1)Tobepublished.(RevisionofISO2944:1974
33、)BS ISO 5596:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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